0.9.3: Adding Module Scoping

This release adds several improvements to the logging facilities:

• All factory and other methods have now been moved to the log package instead of the subpackages.
• All factory methods now have a module parameter which is reflected in the output. This will allow log filtering on a per-module basis. Users are encouraged to create loggers separately for every module.
• Several factory methods now accept a config structure instead of a log level. This config structure can be used to customize the formatter as well as the log level.
• We have added a text log format.